JASC 2421
Service difficulty reports · 4,277
Reports filed under 2421 · AC Generator-Alternator, newest first.
Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE jasc_code = '2421' ORDER BY difficulty_date DESC"
Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet' WHERE jasc_code = '2421' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR NACA2021061000001Idg · leakingDISCREPANCY: IDG OIL LEAK 4 DROPS PER MINUTE. CORRECTIVE ACTION: REMOVED AND REPLACED RH IDG GENERATOR ASSY IAW B767 AMM 24-11-01, 24-22-00 AND 71-00-00. OPS CHECK SATISFACTORY, COMPLIED WITH REACTIVATION MAINTENANCE PROCEDURES. GROUND ETOPS VERIFICATION COMPLSDR YENA2021061100364Gcu · failedFLT 1853, JFK-PBI. EMERGENCY DECLARED. ELEC GEN 1 OFF. ATTEMPTED TO RESET IT. WORKED FOR TWO MINUTES THEN FAILED. AFTER THAT IT WOULD NO LONGER RESET; PERFORMED TSM 24-00-00-810-819A NO FAULTS NOTED. R & R #1` GCU IAW 24-22-34. RAN ENGS 1/ 2 AT IDLE & NO FAULSDR ASAA2021060134996Idg · leaking#1 ENGINE IDG CHARGE FILTER BYPASS VALVE COVER LEAKING OIL WHEN IDG IS PRESSURIZED. REF TSR710845. GROUNDED - YES. REMOVED AND REPLACED #1 IDG REF B737-800 AMM 24-11-11. OPS CHECK GOOD. NO LEAKS OR DEFECTS NOTED.SDR CALA2021053100758Generator · faultedELEC GEN SYS L1 ADVISORY LEFT 1 GENERATOR CHANNEL INOPERATIVE. FIM TASK REF : 24-20-F0-M4A-421A-A CMC MSG# 2418431 LEFT 1 GENERATOR CONTRO L UNIT CMC MSG# 2418431. LEFT 1 GENERATOR CONTROL UNIT CMC MSG# 2418431. FOLLOWED BY LOSS OF L1 ENG GEN, CREW TRIESDR P5CA2021052600196Idg · inoperativeL GENERATOR DRIVE LIGHT EICAS ILLUMINATED. COMPLETED CHECK LIST.(<P>TRANSFERRED TO MDDR 147558 IAW MEL 24-00-01-01, CAT B.</P><P>LP <SPAN>1341037: </SPAN><SPAN>REMOVED AND REPLACED L/H ENG IDG THEN OPER CHKD OK PER AMM 24-11-01/401. CLRD MDDR 147558. NOTIFIED SDR FXGA202105270006Generator · inoperativeLEFT GENERATOR OFF LIGHT ILLUMINATED IN FLIGHT. WHEN L GEN WAS RESET PER THE QRH THE AC CROSSTIE LOCKOUT LIGHT AND DC BUS OFF LIGHTS ALSO ILLUMINATEDSDR UIEA2021052401171Generator · inoperativeAPU GENERATOR INOP WONT PICKUP POWER WHEN APU SELECTED.(<P>PERFORMED APU SYSTEM CK, APU GEN CHK GOOD. ACCOMPLISHED APU GEN OPS TEST IAW B767 AMM 24-21-00. NO DEFECTS NOTED, OPS TEST GOOD.</P>)SDR UIEA2021052401174Generator · inoperativeAPU GENERATOR NOT SUPPLYING POWER.(<P>REMOVED AND REPLACED APU GENERATOR IAW AMM 24-21-01, OPS CHECK GOOD. PER FIM 24-20 TASK 805. REMOVED AND REPLACED APU GCU IAW AMM 24-22-02 OPS CHECK GOOD. (GCU P/N OFF 734284F S/N OFF 2232)</P>)SDR P5CA2021051900182Idg · faultedL GEN EICAS ON T/O ROLL(<P>20 MAY 21 - LP 1311139 - ITEM # 1 - EMA - LEFT ENGINE IDG DISCONNECTED IAW DDG 24-00-01-01 CAT B. DMI # 147233.</P><P>20 MAY 21- LP 1325342 - ITEM # 7 - EMA - L GCU REPLACED BUT NO FZX. ORIGINAL UNIT REFITTED IAW AMM 24-22-02 REV 132SDR FDEA202105201321Idg · failedR GEN OFF CAUTION WITH ASSOCIATED R HYD ELEC 2, R UTIL BUS, AND L UTIL BUS ADVISORIES AT 40 KTS DURING TAKEOFF JUST AFTER PRESSING THR BUTTON FOR TAKEOFF THRUST. REJECTED, RAN QRH AND CAUTIONS CLEARED. COORDINATED WITH GOC AND MOCCASIN TO CONTINUE. ALLSDR QXEA2021052000252Gcu · malfunctionedAT THE VERY BEGINNING OF THE TAKE OFF ROLL #2 DC GEN CAUTION ILLUMINATED CHECKLIST DID NOT CORRECT ISSUE DC CAUTION REMAINS ILLUMINATED . TAKEOFF ABORTED. REMOVED FROM SERVICE. REMOVED AND REPLACED #2 DC GCU PER Q400 AMM 24-31-06-000-801 AND 24-31-06-400-80SDR CALA2021051700684Generator · power lossAPU GENERATOR IS LOSING POWER APU GENERATOR INOP, PNEUMATICS OK, REQUEST MEL DISPATCH DESK: 3321 NAME: JEFF D DATE: 14-MAY-21- NOC DESK: 757 NAME: REBECCA S DATE: 14-MAY-21- APU GENERATOR INOPERATIVE. DEFERRED REF MEL 2400L COMPLIED WITH MEL. GENERATOR, SDR UIEA2021051101121Relay · failedL IDG VALVE STATUS MSG. T/S PER FIM 24-20 FT 802 - FOUND L IDG VALVE FAILURE RELAY 9K468 BAD, REMOVED AND REPLACED PER WDM 24-11-11. OPS TEST GOOD IAW AMM 24-11-00</P>)SDR ASAA2021050634767Idg · noisyREF LOG PAGE 60191450, L/E LOCKOUT REMAINS WITH STANDBY ALTERNATE PROCEDURES & UNCOMMON NOISE HEARD WHILE RUNNING #2 ENGINE. GROUNDED - YES. WHILE IDLING #2 ENGINE VIBRATION & NOISE ENDED W/ IDG DISCONNECT. REMOVED AND REPLACED #2 IDG REF B737-800 AMM 24-11-11SDR 9JLA2021052728380Master Switch · defectiveTHE FLIGHT CREW REPORTED THAT THE EMERGENCY BATTERY WOULD NOT DISCONNECT WHEN SELECTED OFF. THE MAINTENANCE VENDOR TROUBLESHOT AND SUSPECTED THE RIGHT GENERATOR MASTER SWITCH P/N MS24524-23 TO BE DEFECTIVE. THE DEFECTIVE MASTER SWITCH WAS REMOVED AND INSTALLEDSDR QXEA2021050300209Generator · malfunctioned#1 AC GEN CAUTION LIGHT ILLUMINATED ON TAKEOFF. TAKEOFF WAS ABORTED AT APPROXIMATELY 45 KNOTS. EXCESSIVE BRAKING WAS NOT USED. REMOVED FROM SERVICE. NO CHIP DETECTORS OR FAULT CODES FOUND. REMOVED AND REPLACED #1 AC GECU AND #1 AC GEN. OPS =CHECK GOOD. AC GOODSDR ASAA2021050134718Idg · failedAFTER ENGINE START GEN 1 WOULD NOT COME ON LINE. NO FREQ'S OR VOLTS NOTED ON PANEL. GROUNDED - YES. R/R #1 ENG IDG NO LEAKS NOTED. REF B737-800 AMM 24-11-11. OPS CHECK GOOD. GROUND VERIFICATION SUCCESSFUL.SDR ASAA2021043034741Idg · inoperativeAFTER BOTH ENGINE START, #2 GENERATOR WOULD NOT COME ONLINE. #2 GEN OFF BUS LIGHT STAYED ILLUMINATED. GROUNDED - YES. (RESOLVED ON W/O: 1871580 TASKCARD: N/R-00002 ) REMOVED AND REPLACED #2 ENGINE IDG REF AMM 24-11-11/401. LEAK AND GROUND OPERATIONAL TEST COMPSDR AALA202104289008Gcu · faultedAIRCRAFT WAS GROUNDED: LOSS OF ELECTRICAL POWER IN CRUISE, FLIGHT DECLARED EMERGENCY AND DIVERTED TO IAH. REPLACED RH GENERATOR CONTROL UNIT WITH SERVICEABLE UNIT IAW AMM 24-22-02, OPS CHECK GOOD.SDR UIEA2021042601000Filter · indicationAPU FAILED TO START 3X. ECU: GEN FILTER.(<P>DEFERRED TO DMI 145827, MEL 49-11-01A, CAT C, DUE 04MAY21. MX ACTION NOR REQD. MX CNTL ANASTASIO. DISPATCH LC 1951, PLACARD APPLIED.</P><P>LP 1361523, ITEM M25: PERF APU BITE TEST IAW B767 AMM 49-61-05, "GENFAIL" FAUSDR UIEA2021042600998Generator · faultedAPU GEN FAULTS ON BPCU, PER CUSTOMER REQUEST, DEFER THE APU GENERATOR (<P>TRANSFERRED TO MDDR # 145807 REF MEL 24-00-02A.</P><P>LOGPAGE 1254233: AS PER WORK ORDER 80138 REMOVED AND REPLACED APU GENERATOR IAW AMM 24-21-01. OPS CHECKS GOOD. REF LOG PG 1254234 ITSDR ASAA2021042434645Idg · failedAFTER LANDING/WAITING FOR GATE IN KOA: #1 ENG GENERATOR SOURCE OFF AND GEN OFF BUS LIGHT ILLUMINATED. NO-(ZERO) VOLTS OR CYCLES INDICATED ON #1 GENERATOR. PER QRH - STARTED APU AND POWERED #1 SYSTEM W/ APU POWER. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE SDR UIEA2021042200960Warning Message · false indicationLEFT GEN FIELD ILLUMINATED(<P>CYCLED L/H GEN FIELD & RESET FIELD REF AMM 24-22-02. OPS CHECK GOOD, NO ACTIVE FAULTS NOTED.</P>)SDR CWQA20210423002Generator · failedDURING CLIMB CREW NOTICED RH GENERATOR VOLTAGE TURNED AMBER WITH HIGH VALUE OF 31 VOLTS, FOLLOWED BY CAS MESSAGE GEN OFF R DISPLAYED. CHECKLIST FOLLOWED, EMERGENCY DECLARED AND UNEVENTFUL LANDING PERFORMED. MAINTENANCE EVALUATION CONFIRMED RH GENERATOR FAILUSDR UIEA2021041700919Gcu · malfunctionedAFTER R ENG START, R GEN WAS INOP(<P>REMOVED AND REPLACED RIGHT ENG GCU PER AMM 24-22-01. OPS TEST GOOD, NO DEFECTS NOTED. ENG RUN PER AMM 71-00-00, OPS GOOD. PLACED .62 ELEC LOAD TO ISOLATE RT GEN APPROX. 5 MINS, NO FAULTS NOTED.</P>)SDR UIEA2021041600917Generator · malfunctionedL GEN OFF EICAS MESSAGE AFTER START.(<P>TRANSFERRED TO MDDR 145429, CAT B, DUE DATE 19APR21. MEL 24-00-01-01.</P><P>19APR21 - LP 1335294 - ITEM# M8 - BWI - REPLACED L/H GEN IAW AMM 24-11-01. OPS CHECK AND LEAK CHECK GOOD. THIS CLEARS MDDR # 145429. MCC NOTIFIESDR UIEA2021041600915Status Message · false activationSTATUS MSG L IDG VALVE(<P>INSPECTED L IDG OIL LEVEL AND DELTA "P" IAW B767AMM 12-13-03. NO DEFECTS NOTED. MESSAGE CLEARED.</P>)SDR P5CA2021041300091Packing · damagedR GEN DRIVE EICAS MESSAGE DURING INITIAL CLIMB. MESSAGE CLEARED WHEN LEVELING AT 10,000 FT ABOUT 90 SECONDS LATER(<P>REMOVED AND REPLACED PACKING ON RH IDG FILL PORT IAW AMM 20-11-00. NO LEAKS NOTED AT THIS TIME. SERVICED IDG IAW AMM 12-13-03 AND PERFORMED OPSSDR NACA2021041600003Shaft · shearedDURING ENGINE RUN OPERATIONAL CHECK FOR IDG REPLACEMENT, NO GENERATOR OUTPUT. REPLACED IDG DUE TO SHEARED SHAFT IAW AMM 24-11-01, OP AND LEAK CHECK IAW 71-00-00, NO LEAK NOTED AND OP CHECK GOOD. ETOP SS'SSDR NACA2021041600002Idg · leaking#2 ENGINE IDG HAS EVIDENCE OF LEAKAGE. REMOVED AND REPLACED INTEGRATIVE DRIVE UNIT IAW AMM 24-1104, OPS AND LEAK CHECK GOOD. ETOPS SS'S.SDR GTIA2021041535684Idg · faultedIN CLIMB HERD A CLICK SIMILAR TO AUTO PILOT DISENGAGEMENT EVEN THOUGH AP WAS ALREADY ENGAGED. IN CRUISE VARIOUS CLICKS HERD IN CB PANEL BEHIND FO SEAT. AP 2 DISENGAGED UNCOMANDED SHORTLY THERE AFTER. FOLLOWED BY ECAM GEN 2 FAULT. PERFORMED ECAM ACTIONS RESET GSDR CALA2021041200441Idg · failedELEC IDG 2 OIL LO PH/OVHT. REPLACED #2 IDG AND FLUSHED LINES REF AMM 24-21-51. ENGINE RUN GOOD , NO LEAKS, GENERATOR OPD CHECK NORMAL. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1171879 SN OFF 0505 GENERATOR, INTE OFF 31-2411-9-0001 0505 ON 31-2411-9-0001 018SDR UIEA2021041000874Idg · faultedSTATUS MSG, LT IDG VALVE. T/S LT IDG VALVE EICAS MESSAGE IAW FIM TASK 24-20 FAULT TREE 802. FOUND LT IDG/OIL OUT BULB WIRING MESSAGE ON BPCU. REMOVED AND REPLACED LT NR 1 IDG IAW AMM 24-11-01. OP'S CHECK GOOD.SDR P5CA2021040800086Idg · underservicedRECEIVED R GEN DRIVE ON TAKEOFF ROLL. MESSAGE CLEARED ON CLIMBOUT OF 10000(<P>SERVICED IDG WITH 1QT IAW 12-13-03-613-027. NO LEAKS NOTED. OK FOR SERVICE.</P>)SDR HALA2021040900046Generator · defectiveETOPS - BITE TEST OF GAPCU SHOWS CLASS 1 FAULT 242300 WRG: GEN APU FEEDER. TROUBLESHOOT PER TSM TASK 24-20-00-810-998-A UP TO STEP 4A.(2)(B) & FOUND FEEDERS ARE CORRECT. REMOVED AND REPLACED APU-GEN (8XS) PER AMM 24-23-51. OPS TEST GOOD. BITE TEST OF THE GAPCUSDR ASAA2021040734551Idg · failedWITH #1 ENG GENERATOR SELECTED GEN OFF BUS LIGHT ILLUMINATED-AC AMPS AND AC VOLTS INDICATED ZERO. GROUNDED - YES. REMOVED AND REPLACED #1 ENGINE IDG IAW B737-900ER AMM 24-11-11. OPERATIONAL TESTS GOOD. RE-INSTLALED/RE-ACTIVATED GEN DRIVE (AMBER) AND GEN OFF BUSDR UIEA2021040300818Bolt · unsafetied#2 ENG IDG QUAD-RING BOLT NOT SAFETIED PROPERLY.(<P>INSTALLED SAFETY WIRE PROPERLY ON ENG #2 IDG QUAD-RING BOLT IAW AMM 20-10-23.</P>)SDR UIEA2021032700727Idg · faultedR GEN OFF EICAS MESSAGE, ASSOCIATED R AND L UTIL BUS OFF, ALSO RAN CHECKLIST, WOULD NOT RESET (<P>PERFORMED FIM TASK 24-20 TASK 804 FIM. REPLACED DIODE R GEN PER CUSTOMER REQUEST REMOVED AND REPLACED R GEN IDG AMM 24-11-01, OPS CHECK GOOD.</P>)SDR UIEA2021032200684Idg · malfunctionedR GEN OFF(<P>TRANSFERRED TO MDDR 144222 IAW MEL 24-00-01-01. MX ACTION C/W. PLACARDS INSTALLED. ACL 2332Z</P><P>LP <SPAN>1466048: </SPAN><SPAN>REMOVED AND REPLACED #2 ENG IDG IAW 24-11-01-404. PERFORMED LEAK CHECK, ALL OK. SERVICED IDG IAW 12-13-03/301. PERFORSDR QXEA2021031700117Generator · inoperativeON DEPARTURE #1 AC GEN CAUTION ILLUMINATED E&A CHECKLIST DID NOT RESOLVE FAULT. REMOVED FROM SERVICE. PERFORMED FIM TASK 24-20-00-810-801 AND AMM 05-53-00-210-819 NOTHING FOUND ON CHIP DETECTOR AND NO FAULT CODES FOUND. R+R A/C GEN. REF MTC 6242101 OPS CHECK GSDR ASAA2021031434296Oil Cooler · leakingFOUND OIL FILM ON #2 ENG INBOARD INNER TR HALF POSSIBLY COMING FROM IDG OIL COOLER. GROUNDED - YES. REMOVED AND REPLACED IDG OIL COOLER PER B737-800 AMM 24-11-21. PERFORMED IDLE POWER LEAK CHECK REF AMM TASK 71-00-00-700-801-F00, NO LEAKS NOTED, ETOPS GROUND VSDR ASAA2021031334285Idg · inoperativeFLT CREW REPORTS DURING TAXI "DRIVE" LIGHT CAME ON FOR APPROX 1 MIN, WENT OUT, THEN BACK ON FOR APPROX 3 MIN, WENT OUT, THEN BACK ON FOR APPROX 5 MIN, ON #2 IDG. GROUNDED - YES. PERFORMED IDLE RUN OF ENG #2. #2 GEN OPERATED AS NORMAL DRIVE LIGHT REMAINED EXTINSDR 2021FA0000080Generator · burnedREMOVED RH ENGINE AUX GENERATOR (AC ALTERNATOR) P/N 9914777-2 (94495-1), S/N 128 DUE TO WINDING RESIN MELTING FROM ALTERNATOR, RESIN SLINGING FROM INTERNAL FAN AND BEARING DRAG. UNIT REMOVED WITH 231.2HRS/144 LANDINGS SINCE OVERHAUL. PREVIOUS ALTERNATOR FAILURSDR ASAA2021030934269Idg · inoperativeCRUISE FL 380, MASTER CAUTION ELEC, SOURCE LT + DRIVE LT ENG #1 ILLUMINATED. QRH DISCONNECTED IDG 1 AND COVERED BUS W/ APU. GROUNDED - YES. REPLACED IDG AIR/OIL COOLER REF B737-900 AMM 24-11-21-000-801. REMOVED AND REPLACED #1 ENG IDG REF AMM 24-11-11. PERFORMSDR UIEA2021030900506Idg · malfunctioned"R GEN DRIVE" EICAS MANUALLY DISCONNECTED RIGHT GENERATOR DRIVE.(<P>PLACED ON MDDR 143574 IAW MEL 24-00-01-01, CAT B.</P><P>CVG MX, 10MAR21 LP 1345596, ITEM M2: REMOVED AND REPLACED R/H ENG IDG. REF B767 AMM 24-11-01. OPS CHECK IS SATISFACTORY. THIS CLEARS DMISDR UIEA2021030800492Switch · inoperativeAPU INOP.(<P>TRANSFER TO MDDR 143540 IAW DDG 49-11-01B CAT C DUE DATE 11MAR21 PLAC INSTALLED. DISPATCH NOTIFIED.</P><P>LP 1332457: T/S PER FIM 49-11-998 AND FOUND GEN FILER DELTA P SWITCH FAULTY. REMOVED AND REPLACED DIFF PRESS SWITCH PER AMM 49-27-15, OPS OK.SDR SWAA2021031153375Gcu · faulty#2 ENGINE SOURCE OFF LIGHT AT 40,000 FEET APU FAULT LIGHT ON ATTEMPTED START LANDING UNEVENTFUL. DID NOT START APU AFTER LANDING. / R&R #2 ENG GCU PER AMM 24-21-81 SPU FAULT 49-41010 CHECKS GOOD PER FIM 49-40 TASK 801._RAR# 90558 POS 2 PN OFF/ON 762185H SN OFFSDR P5CA2021030400058Switch · malfunctionedRIGHT GENERATOR IDG DRIVE LIGHT INOP. R ENG GENERATOR INOP(<P>TRANSFERRED TO MDDR 143311, CAT B, IAW MEL 24-00-01-01. PLACARD INSTALLED. AIRCRAFT OK FOR SERVICE.</P><P>ITEM 2: DEFERRAL MDDR 143310 AND MEL 24-11-01-01-01B TRANSFERRED TO MDDR 143311 IAW MEL 24-0SDR DALA2021030501275Generator · leakingSHIP 3154 ON APPROACH FUME EVENT: "DIRTY SOCK" "MUSTY" ODOR DETECTED AT FL 180. CORRECTIVE ACTION: / PERFORMED A319 NO GO ODI ATA 2172 SMOKE AND FUMES FOUND APU GEN LEAKING CAUSING THE SMELL. BURNED OUT DUCTS PER AMDS DELTA WORK CARD 2100-2005. ALSO R/R APU GESDR ASAA2021022434174Idg · leakingMAINTENANCE CONTROL REQUEST FOLLOW-UP TO NR 1 IDG FREQUENT SERVICING. GROUNDED - YES. REMOVED AND REPLACED NR 1 IDG. REF B737-900 AMM 24-11-11.
Back to JASC 2421